Home / 20,310.75-28,032.08-11,925.63

Finding the Fourth Proportional to 20,310.75, 28,032.08 and 11,925.63

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Solution

The fourth proportional to 20,310.75, 28,032.08 and 11,925.63 is: 16,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310.75 : 28,032.08 = 11,925.63 : x
  2. Step 2: Convert to fraction form
    20,310.75/28,032.08 = 11,925.63/x
  3. Step 3: Cross multiply
    20,310.75x = 28,032.08 × 11,925.63
  4. Step 4: Simplify right side
    20,310.75x = 334,300,154.58
  5. Step 5: Solve for x
    x = 334,300,154.58/20,310.75
  6. Step 6: Final answer
    x = 16,459.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.